The Blueair 2-in1 Purify+Humidify DH3i shows that Blueair can do air purifier + humidifier combo better than other brands, even Sharp with their iconic purifier + humidifier. Best thing from this device? Let’s find out in our Blueair 2-in-1 Purify+Humidify DH3i review.
Blueair 2-in-1 Purify+Humidify ranks A- in our air purifier ranking list. We give the biggest and most thorough database of air purifier reviews in the world.
In Breathe Quality, we have reviewed all air purifiers under these sections. Also, we guarantee that:
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Sections
- HEPASilent is high performance, and silent
- AHAM and Energy Star rating
- Great humidifier function
- Smart features
- 3-year warranty
- Annual filter cost is high
- No carbon filter
Blueair is a Swedish air care brand founded in 1996, known for its proprietary HEPASilent filtration technology that combines electrostatic and mechanical filtration for quieter, faster air cleaning. Its 2-in-1 Purify + Humidify line extends that engineering into the purifier-humidifier category, pairing AHAM-certified purification with mist-free InvisibleMist evaporative humidification in a single tower unit. So, get ready for the Blueair 2-in-1 Purify+Humidify review.
Other Blueair’s Air Purifier Reviews:
Blueair 2-in-1 Purify+Humidify DH3i Price
The Blueair 2-in-1 Purify+Humidify arrives a little late to the purifier-humidifier party but, based on my time with the device, it’s a purifier/humidifier combo that mostly delights, and which is sure to earn a place among our ranking of the best air purifiers.
We also know of the Blueair 2-in-1 Purify+Humidify Pro as an upgraded version of our today unit, and will make a review soon for this device. For the base Blueair 2-in-1 Purify+Humidify, the price is quite high at $429, which is close to the Sharp KC-850U. With few air purifier brands investing in hybrid technology, the Blueair 2-in-1 Purify+Humidify stands out as a unique option with limited competition.
If you’re familiar with the Dyson Purifier Humidify+Cool PH3, which comes at a much higher price, the Blueair 2-in-1 Purify+Humidify feels more affordable, making it a more appealing option. Don’t forget to check Breathe Quality deal, because you can find the Blueair 2-in-1 Purify+Humidify at cheaper, from just $322.
Blueair 2-in-1 Purify + Humidify, InvisibleMist.
The combination of the HEPASilent air purifier with InvisibleMist humidifier, to keep perfectly balanced air in one product.
Related post: Best air purifier 2026.
Blueair 2-in-1 Purify+Humidify DH3i Design and Size
Blueair’s decision to make its first purifier-humidifier combination through multiple standalone generations turns out to have been a smart move. The Blueair 2-in-1 Purify+Humidify is in many ways what I want all combination air purifier devices to be.
Standing upright, the Blueair 2-in-1 Purify+Humidify’s 26-inch tall by 13.4-inch wide by 12-inch deep frame is like a very capable tower air purifier. Unlike the tall and narrow Dyson PH04, the dimensions of which stretch the definition of a traditional tower purifier, the Blueair 2-in-1 Purify+Humidify could almost pass for a standalone Blue Signature SP3i; that is as long as you overlook the water tank housing on the rear, which does not match the slimmer profile of the front panel.
It is even bigger and heavier than the Blueair 2-in-1 Purify+Humidify Pro – which is basically a $99 upgrade from our today Blueair 2-in-1 Purify+Humidify. The weight of the unit is 20 lbs, not counting the 0.8 gallons tank. Again, if you don’t appreciate that multi-purpose devices like this are naturally going to be bigger and heavier than standard air purifiers, you’re barking up the wrong tree.
For most part, the Blueair 2-in-1 Purify+Humidify has a clean design and a crisp white exterior suited to any home aesthetic. The UV pump is built-in and the entire humidification system is engineered to resist bacterial growth, a humidifying feature that’s mainly for premium devices like the Dyson Purifier Humidify+Cool.
It is also very convenient to use the humidifier function of the Blueair 2-in-1 Purify+Humidify, as you can refill the water tank from the top. This is simpler and doesn’t require you to bend down and remove the tank to refill it.
Back to the air purifying part, because we are Breathe Quality – a website dedicated to air purifiers alone, the Blueair 2-in-1 Purify+Humidify runs a similar bottom-to-top airflow system concept, using 3 different HEPA filters to cover the whole bottom part. There are air intake vents along the sides and lower portion of the unit. Along the base is the power cord connection. On top is the air purifier’s outlet, for releasing fresh air and invisible mist, too.
Related post: Best air purifiers for bedroom.
Blueair 2-in-1 Purify+Humidify DH3i Filters
We check the performance of one air purifiers based on its air filters’ quality and material, as well as the number of air filter types in the testing device. The Blueair 2-in-1 Purify+Humidify is a hybrid air purifier + humidifier device, so it only uses 1-stage air cleaning system.
- Particle filter – Instead of using a True HEPA filter, the BlueBlueair 2-in-1 Purify+Humidify runs a polypropylene fiber filter to help capture 99.97% of all allergens as small as 0.3 microns like dust, dust mites, pet dander, pollen and fungi (HEPASilent technology).
To keep the Blueair 2-in-1 Purify+Humidify as slim as possible, Blueair decides to use only the normal Particle filter with HEPASilent technology to do the filtering works. The HEPASilent technology is basically the mechanical particle filter combined with an electrostatic layer, and its performance is generally better than normal HEPA filter.
For the performance, the Blueair 2-in-1 Purify+Humidify must take a more difficult test at 400 square feet, in 1 hour. However, the Blueair 2-in-1 Purify+Humidify did pretty well for its price, and it is even better than the Blueair ComfortPure T10i and Blueair ComfortPure T20i at more expensive price range. However, the performance of the Blueair hybrid air purifier is slightly behind the AeraMax SE and Airmega 250 – which are standalone air purifying devices.
With far better performance than the Sharp KC-850U, it’s safe to assume the Blueair 2-in-1 Purify+Humidify is currently the best mid-range hybrid air purifier + humidifier combo at the moment.
Air Purifier Efficiency — 400 sq ft Room, 1 Hour
Exponential decay model: C(t) = C₀ × e−ACH × t | 8 ft ceiling (3,200 ft³), closed room, perfect mixing
Fellowes AeraMax SE
AHAM verified99.86%
particles removed after 1 hr
Blueair 2-in-1 Pro
AHAM verified99.08%
particles removed after 1 hr
Coway Airmega 250
AHAM verified99.07%
particles removed after 1 hr
Blueair 2-in-1 DH3i
AHAM verified98.70%
particles removed after 1 hr
ComfortPure T20i
AHAM verified98.58%
particles removed after 1 hr
Blueair PetAir Pro
AHAM verified96.26%
particles removed after 1 hr
Sharp KC-850U
AHAM verified95.38%
particles removed after 1 hr
ComfortPure T10i
AHAM verified87.96%
particles removed after 1 hr
Particle concentration decay over 60 minutes
Assumptions: smoke CADR used for all models; all eight models AHAM verified; 8 ft ceiling assumed; perfect room mixing assumed (real-world results will vary by room geometry and purifier placement).
The Blueair 2-in-1 Purify+Humidify needs to replace filter after 6 months, with the filter cost at $49. You also need to replace the wick filter after 6 months, with cost at $24. We think the annual filter cost is quite high for the air purifier.
Related post: Best air purifiers for allergies.
Blueair 2-in-1 Purify+Humidify DH3i Room Coverage
All Blueair air purifiers are sent to the Association of Home Appliance Manufacturers (AHAM) for verified tests, and the Blueair 2-in-1 Purify+Humidify is no exception. It is recommended for room size of 360 square feet, based on 5 ACH.
The ACH of the Blueair 2-in-1 Purify+Humidify is 5X. All AHAM-verified air purifiers run at recommended room size will exchange air 5 times per hour.
The CADR of the Blueair 2-in-1 Purify+Humidify is 222 Dust/ 232 Smoke/ 235 Pollen (cfm). This is very similar to the performance of the Blue Pure 311 Auto that we reviewed in the past, and both are priced the same.
Related post: Best large room air purifiers.
Blueair 2-in-1 Purify+Humidify DH3i Sound
For the noise level, the Blueair 2-in-1 Purify+Humidify operates at 24 decibels (dB), which is similar to the sound of rustling leaves. We recommend to run it at lowest speed when you’re sleeping.
When you run the air purifier on highest setting, the noise level could reach 52 decibels, which is decent for its fan power. As we mentioned earlier, this is a hybrid air purifier that perfectly fits a bedroom.
Related post: Best air purifiers for baby.
Blueair 2-in-1 Purify+Humidify DH3i Power Consumption
One of our most FAQs is “Do air purifiers use a lot of energy?” An air purifier is meant to run for a long time to be efficient, that’s why many air purifier brands consider the energy-saving standard, mostly in the rate of Energy Star, is one important selling point.
The Blueair 2-in-1 Purify+Humidify has a rated power of 48 watts, and it is an Energy Star device. So to say, it has a high integrated watt power, and is recommended for energy saving.
If you run the Blueair 2-in-1 Purify+Humidify for 8 hours per day, you need to spend $21 annually.
Related post: Best air purifiers for pets.
Blueair 2-in-1 Purify+Humidify DH3i Additional Features
The Blueair 2-in-1 Purify+Humidify DH3i is a hybrid air purifier, making it a very modern appliance. Its humidifying function is a step above older products like the Sharp KC-860U or Sharp KC-P70UW. You might wonder what we mean by that. The humidification system is enhanced not only by a wick filter but also by UV-C light, which helps remove physical impurities from tap water as well as mold and viruses that can accumulate on the filter. With the InvisibleMist technology, you can enjoy clean and safe humidified air.
As a Blueair purifier, the Blueair 2-in-1 Purify+Humidify DH3i can connect to your smartphone app, and you can set the device to Night mode, change the schedule, or turn it on or off at will. You will enjoy the filter life alert whenever it’s time to replace your filter.
There are two Smart Sensors in the Blueair 2-in-1 Purify+Humidify, one for the air quality and one for the humidity. Both work well, and you can activate the Auto Mode to automatically maintain the best air quality and humidity in your home.
One more thing that we love from the Blueair 2-in-1 Purify+Humidify is the Auto dry setting, which helps dry the wick filter, to prevent mold buildup.
Related posts:
1, Best air purifiers for smoke.
2, Best air purifiers for dust.
3, Best air purifiers for mold.
Blueair 2-in-1 Purify+Humidify DH3i Customer Service
As one of the best air purifier brands, Blueair focuses strongly on customer service. With a lot of local stores and dedicated support via phone and email, you are guaranteed to reach its customer service as soon as possible.
If you need to find a local store of Blueair anywhere in the world, you can use the store locator function on its website. To reach customer service, you can choose between calling 888-258-3247 or emailing info@blueair.com. Customer service is available for you from Monday to Friday, with the exception of U.S. holidays.
Remember only one thing: you need to complete the Product Registration form within 60 days of purchase or register through the Blueair Friend mobile app to secure the 5-year warranty. Otherwise, you only benefit from a 1-year warranty. Moreover, do not attempt to bring the air purifier outside of the United States or Canada, or your warranty will be void immediately. All Blueair warranties are non-transferable.
Blueair air purifiers from the Blue family have only a 2-year warranty from the date of purchase (with valid proof of purchase). One quick reminder: Blueair doesn’t cover warranties from third-party sellers, so buying from Breathe Quality’s deals is highly recommended.
Blueair 2-in-1 Purify + Humidify, InvisibleMist.
The combination of the HEPASilent air purifier with InvisibleMist humidifier, to keep perfectly balanced air in one product.
Our verdict
The Blueair 2-in-1 Purify+Humidify DH3i is certainly one of the best air purifier and humidifier combos you can buy right now. It’s also one of the more affordable options if you need a humidifying function, and it integrates the feature well without compromising air filtration performance. Its smart features are top-tier, just like what we should expect from a Blueair product.
Blueair 2-in-1 DH3i Air Purifier: Trusted Review in 2026
The Blueair 2-in1 Purify+Humidify DH3i shows that Blueair can do air purifier + humidifier combo better than other brands, even Sharp with their iconic purifier + humidifier. Best thing from this device? Let’s find out in our Blueair 2-in-1 Purify+Humidify DH3i review.
Product Brand: Blueair
Product Currency: USD
Product Price: 429
Product In-Stock: InStock
4.3
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Summary
Currently the best budget hybrid air purifier.
